室内泡沫消火栓的栓口方向宜向下或与设置泡沫消火栓的墙面成()。A.30°  B.45

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问题:

室内泡沫消火栓的栓口方向宜向下或与设置泡沫消火栓的墙面成()。

A.30° 

B.45° 

C.60° 

D.90°

考点:一级消防工程师一级消防工程师综合练习一级消防工程师综合练习题库
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护士为8个月小儿做颈外静脉穿刺术时,正确的操作方法是()

A.患儿取侧卧位,充分暴露颈静脉

B.待患儿安静后,常规消毒穿刺

C.进针角度为30°角

D.穿刺部位在颈外静脉上1/3与中1/3交界处

E.拔针后,应用无菌棉球压迫穿刺部位1分钟

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原始凭证有错误的,都应当由出具单位重开,不得在原始凭证上更正。 ( )

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企业是社会的细胞,社会是企业利益的源泉。企业作为社会的重要组成部分,同样是“国家公民”之一,它有追求自身经济利益最大化的权利,又承担着“积善扬德、助困扶弱”的社会责任。企业竞争力在很大程度上依赖于企业竞争环境,企业慈善行为则可以博得更多的社会认同和影响,能增强企业的竞争力。一个有社会责任感的企业,消费者对其产品也就更加信赖。因此,成功的企业既要做好自己的商业品牌,也要树立企业的社会公民品牌。这段文字的主要内容是( )。

A.高度的社会责任感是一个成功企业的必要条件
B.企业慈善行为能够增强企业的市场竞争力
C.成功的企业要做好商业与社会公民两个品牌
D.做慈善既是企业的社会责任,也是企业发展的需要

题型:单项选择题

对于铸造桩核蜡型制作完成后的要求,下列哪一项是错误的

A.上方核部的形状与基牙预备后的形状一致
B.轴壁光滑无倒凹
C.轴壁聚合度为2°~4°
D.核的周围留出烤瓷冠的厚度
E.根管蜡型可以做得粗糙一些,以增强固位

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Although no longer slavers after the Civil War, American blacks took no significant part in the life of white America except as servants or laborers. Many thousands of them emigrated from the war-ravaged South to the North from 1865 to 1915 in the hope of finding work in the big industrial cities. Whole communities of blacks crowded together into ghettos in New York City, Chicago and Detroit, where once the poor white immigrants had lived. These ghettos, neglected by the city authorities, became slums. The schools to which black children went were hopelessly inadequate. Unemployment in black ghettos remained consistently higher than in white communities.
41. Serious problems with black ghettos. ______
Stable family life was difficult to maintain.
42. The extreme poverty of the blacks. ______
In the late 1970s, nearly a third of all blacks still belonged to the so-called "underclass", they are so " under-privileged " and poor that they cannot seize the opportunity for advancement.
43. Efforts to put an end to racial discrimination. ______
Race relations in the USA continue to be a thorny problem.
44. Improvements in lives of the blacks. ______
Despite some setbacks, race relations are improving.
45. Prevailing violence in solving racial problems. ______
It is said that television had an enormous influence on frustrated and bitter blacks, for it showed them bow much better whites on the whole lived than blacks. At the end of the 1960s, there were serious riots in many cities.
The violence quickly died down. Blacks began to use their votes to exert political pressure. Cities like Atlanta (Georgia), Gary (Indiana), and Los Angeles (California) elected black mayors. Integration of schools, despite resistance from white groups, goes on, and the proportion of blacks in American colleges has increased dramatically in the last 20 years. There are reasons to maintain a cautious optimism that progress in race relations will continue.
[A] It has been estimated that there are more than 20 million Americans in this category, 10% of the population, including many millions of whites.
[B] Blacks are gaining in self-confidence. In more and more areas, they are winning control of their communities, and their standard of living is going up faster than that of the poor whites. It is still a hard struggle. There is still prejudice and even some hatred, but in most walks of American life there are now more blacks than ever before.
[C] The era of blatant discrimination ended in the 1960s through the courageous actions of thousands of blacks participating in peaceful marches and sitins, to force Southern states to implement the Federal desegregation laws in schools and public accommodations. Down came the " whites only" notices in bused, hotels, trains, restaurants, sporting events, restrooms and on park benches that once could be found everywhere throughout the South. Gone were the restrictions that prevented blacks voting. Gone, too, were the hideous lynchings, which since the Civil War had caused the death of thousands of innocent blacks-- hanged without trial by white mobs. However, even today, poor, uneducated lacks do not always receive the same degree of justice that the more affluent and better educated can expect.
[D] Many blacks chose to keep silent about their unfairness instead of resorting to violence. But their silence was also problem provoking: on the one hand, silence would build up a lot of complaints and hatred in their minds, thus resulting in a negative approach to life and everything; on the other hand, silence would give the whites an impression that the blacks take the reality for granted and put more racial discrimination on them.
[E] Unemployed fathers would on occasion walk out of their homes and never return. Children neglected by their parents turned in some instances to drugs and crimes. There are more than 700 murders a year in cities like New York, Detroit, Los Angeles and Houston, and most of these deaths are of blacks killed by blacks. The black ghettos are dangerous both for blacks and non-blacks.
[F] Radical blacks like the Black Panthers demanded a free black state within the Union, and advocated violence to achieve that end and to protect themselves against what they felt was police brutality toward blacks. For a while, violence overshadowed the influence of the greatly respected pacifist black, Martin Luther King, Jr. , who had provided the inspiration and leadership for those devoted to a peaceful change and whose murder in 1968 stunned America.

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